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Medium · 4.3 CVE-2026-126807 EUVD-2026-124022GHSA-744h-gprq-h6r9

WuzAPI through 1.1.0 Cross-Tenant Information Disclosure via /chat/history

Published Nov 11, 2026 · Updated Nov 12, 2026 · Assigned by VulnCheck

Description

WuzAPI through 1.1.0 contains a cross-tenant information disclosure vulnerability in the GetHistory handler that allows authenticated users to view other tenants' chat metadata. Attackers with message history enabled can request GET /chat/history with chat_jid=index to list every user's internal ID, stored chat JIDs, and last-message times.

Affected products

VendorProductAffectedFixed
asternic wuzapi ≤ 1.1.0 —

References